PCBs may affect fetal brainA new study provides the strongest evidence to date that endocrine disrupting chemicals such as PCBs (polychlorinated biphenyls) can interfere with thyroid hormone in pregnant women and may travel across the placenta to affect the fetus.

Scientists identify principal sensor for touchA team led by biologists at The Scripps Research Institute (TSRI) has solved a long-standing mystery in neuroscience by finding the "mechano-receptor" protein mediating the sense of touch.

Sperm quality decreases with agePrior evidence regarding men’s semen quality declining with age — lowering their fertility — is established by a new review of data from 90 previous studies done around the world.